.the food we eat contains many chemical substance are known as nutrients nutrients are invisible compounds in the food which are necessary for keeping the body healthy

.The common nutrients in our food are:

.carbohydrates

.proteins

.fats

.vitamins

.minerals

.fibre

.water

Function and sources of nutrients

2.3.1 Carbohydrates

carbohydrates provide energy to our body which keeps it going through out the day.

there are two types of carbohydrate such an is also called simple carbohydrate fruits honey and sugar are some sources of sugar

starch: starch is called complex sugar. plants store energy in the form of starch.when we eat plant products containing starch,our digestive system break down starch into glucose this glucose is absorbed in blood and provides energy

some foods give carbohydrates to our body in the form of sugar for example sugar,honey,jam,jaggery,etc

one gram of carbohydrate gives for kcal.an adult person need 400-200 gms of carbohydrates

.gives energy and feeling fullness.

.increase the bulk of our food,

.spare proteins to person other function

.helps to make the food tasty

starch sources:cereals like wheat rice bajra maize potatoes colocasia etc.